THE ROTATIONAL SPECTRUM OF ETHANOL $(CH_{3}CH_{2}OH)$ IN THE HYDROXYL TORSION GROUND STATE.
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Date
1995
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Publisher
Ohio State University
Abstract
The ground state spectrum of the asymmetric hydroxyl internal motion in ethyl alcohol has been studied in the millimeter-wave region. The spectrum of and interactions between the three different OH torsional sub-states or rotational isomers (trans, gauche + and gauche-) are discussed. Approximately 1000 transitions have been assigned to the three different torsional substates including many with significant deviation from a standard asymmetric rotor pattern. This work extends the previous trans $state^{1}$ and gauche $states^{2}$ analyses and provides experimental data for a more complete formulation of a molecular Hamiltonian for the asymmetric $hydroxy^{1}$ internal rotation.
Description
$^{1}$J. C. Pearson, K. V. L. N. Sastry, M. Winnewisser, E. Herbst and F. C. De Lucia, J. Phys. Chem. Ref. Data 24, in press, 1995. $^{2}$Ramesh K. Kakar and C. Richard Quade, J. Chem. Phys 72, 4300-4307 (1980).
Author Institution: Jet Propulsion Laboratoy, Mail Stop 183-301, 4800 Oak Grove Dr., Pasadena, CA 91109.; University of New Brunswick, Frederiction, New Brunswick, E3B 5A3.; The Ohio State University, 174 W. 18th. Ave., Columbus, OH 43210.
Author Institution: Jet Propulsion Laboratoy, Mail Stop 183-301, 4800 Oak Grove Dr., Pasadena, CA 91109.; University of New Brunswick, Frederiction, New Brunswick, E3B 5A3.; The Ohio State University, 174 W. 18th. Ave., Columbus, OH 43210.